Brend, M. A. and Thomas, P. J. (Peter J.). (2009) Decay of vortex rings in a rotating fluid. Physics of Fluids, Vol.21 (No.4). Article 044105. ISSN 1070-6631

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Abstract

Vortex rings propagating through a rotating fluid, along the axis of rotation, are studied experimentally. The length, x(d), traveled by the rings until they have completely decayed is measured. In agreement with theoretical arguments based on the Taylor-Proudman theorem it is observed that the value of x(d) decreases with decreasing Rossby number, Ro. For the parameter range investigated here we determine an overall, global trend for the scaling of the mean decay length that can be roughly summarized by the expression (x(d)/D)=4.77 Ro(1.06), where D is the diameter of the generator nozzle used to produce the vortex rings.

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery Q Science > QC Physics
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	Physics of Fluids
Publisher:	American Institute of Physics
ISSN:	1070-6631
Date:	April 2009
Volume:	Vol.21
Number:	No.4
Number of Pages:	4
Page Range:	Article 044105
Identification Number:	10.1063/1.3117355
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/27775

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